Office chair



FIG. 1 is a front view of an office chair showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof, the right side being a mirror image;

FIG. 4 is a rear view thereof;

FIG. 5 is a left, isometric view thereof;

FIG. 6 is a front view of a second embodiment;

FIG. 7 is a top view thereof;

FIG. 8 is a left side view thereof, the right side view being a mirror image;

FIG. 9 is a rear view thereof; and,

FIG. 10 is a left, isometric view thereof. 

The ornamental design for an office chair, as shown and described. 